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Thermal Energy Control in Optical Devices

A kind of optical equipment and equipment technology, applied in optics, optical components, nonlinear optics, etc., can solve the problem of modulator efficiency reduction

Active Publication Date: 2020-09-29
MELLANOX TECHNOLOGIES LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the efficiency of the modulator decreases with increasing thermal levels

Method used

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  • Thermal Energy Control in Optical Devices
  • Thermal Energy Control in Optical Devices
  • Thermal Energy Control in Optical Devices

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Embodiment Construction

[0032] An optical device has an optical modulator on a substrate. The modulator includes a ridge extending upwardly from the base. The ridge includes an electro-absorption medium through which an optical signal is guided. A thermal conductor is positioned to conduct thermal energy away from the ridge. The distance between the thermal conductor and the ridge varies for at least a portion of the ridge. This distance can be varied in order to reduce hot spots in the modulator. For example, most heat is generated at the entrance of the modulator due to increased light absorption near the entrance of the modulator. Thus, the thermal conductor may be closest to the ridge at the modulator inlet and then move away from the ridge as it moves towards the modulator's outlet. Thus, the heat conductor increases the uniformity of the temperature distribution along the ridge. Increased temperature uniformity allows higher power levels to be used with the modulator.

[0033] In some cas...

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Abstract

The optical device includes an optical modulator on a substrate. The modulator includes a ridge extending upwardly from the base. The ridge includes an electro-absorption medium through which an optical signal is guided. A thermal conductor is positioned to conduct thermal energy away from the ridge. The distance between the thermal conductor and the ridge varies along at least a portion of the length of the ridge.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to US Patent Application 14 / 670,292, filed March 26, 2015, the entire contents of which are incorporated herein by reference. technical field [0003] The present invention relates to optical devices, and more particularly to optical devices related to heat generation. Background technique [0004] Optical links carry optical signals from transmitters to receivers. Increasing the power of the optical signal increases the length of these links. Components such as modulators are often used in these links; however, there is usually a limit to the level of optical power that can be handled by these components. For example, during operation the modulator generates a photocurrent. This photocurrent causes significant heating of the component. As the power level of the optical signal increases, the heat generation level also increases. This heating can damage components and cause other di...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/17G02F1/025G02F1/295G02F1/01
CPCG02F1/025G02F2201/063G02F2203/21G02F1/0102G02F1/011G02F1/17G02F1/0155G02B6/4269
Inventor 冯大增雅各布·利维差猜·布什亚甲尼斯穆罕默德·埃斯艾莉·雷德
Owner MELLANOX TECHNOLOGIES LTD